"Stiff Upper Lip" is a song by Australian rock band AC/DC, composed by Angus and Malcolm Young. It was released on 8 February 2000 as the lead single from their 14th studio album, Stiff Upper Lip (2000). The song gave the band their third number-one single on the US Billboard Mainstream Rock Tracks chart, and it entered the top five on the airplay charts of Poland and Spain.